Electromyography-Informed Estimates of Joint Contact Forces Within the Lower Back and Knee Joints During a Diverse Set of Industry-Relevant Manual Lifting Tasks.
Repetitive manual labor tasks involving twisting, bending, and lifting commonly lead to lower back and knee injuries in the workplace. To identify tasks with high injury risk, we recruited N = 9 participants to perform industry-relevant, 2-handed lifts with a 11-kg weight. These included symmetrical...
| Publicado en: | Journal of Applied Biomechanics Vol. 41; no. 2; pp. 151 - 161 |
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| Autores principales: | , , , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Apr2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=183920092&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 183920092 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10658483 0DM jtl: Journal of Applied Biomechanics issn: 10658483 maglogo: N pubinfo: dt: Apr2025 vid: 41 iid: 2 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 183920092 183920092 183920092 10.1123/jab.2023-0292 183920092 ppf: 151 ppct: 10 formats: tig: atl: Electromyography-Informed Estimates of Joint Contact Forces Within the Lower Back and Knee Joints During a Diverse Set of Industry-Relevant Manual Lifting Tasks. aug: au: Davenport, Felicia R. Leestma, Jennifer K. Staten, Adriana Bhakta, Krishan Fernandez, Joshua Mazumdar, Anirban Young, Aaron J. Sawicki, Gregory S. affil: Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA sug: subj: Knee Joint Physiology Back Physiology Lifting Task Performance and Analysis Electromyography Human Male Female Adult Experimental Studies Comparative Studies Muscle, Skeletal Physiology Rotation Assistive Technology Low Back Pain Prevention and Control Knee Pain Prevention and Control Funding Source Adult: 19-44 years Male Female ab: Repetitive manual labor tasks involving twisting, bending, and lifting commonly lead to lower back and knee injuries in the workplace. To identify tasks with high injury risk, we recruited N = 9 participants to perform industry-relevant, 2-handed lifts with a 11-kg weight. These included symmetrical/asymmetrical, ascending/descending lifts that varied in start-to-end heights (knee-to-waist and waist-to-shoulder). We used a data-driven musculoskeletal model that combined force and motion data with a muscle activation-informed solver (OpenSim, CEINMS) to estimate 3-dimensional internal joint contact forces (JCFs) in the lower back (L5/S1) and knee. Symmetrical lifting resulted in larger peak JCFs than asymmetrical lifting in both the L5/S1 (+20.2% normal [P <.01], +20.3% shear [P =.001], +20.6% total [P <.01]) and the knee (+39.2% shear [P =.001]), and there were no differences in peak JCFs between ascending versus descending motions. Below-the-waist lifting generated significantly greater JCFs in the L5/S1 and knee than above-the-waist lifts (P <.01). We found a positive correlation between knee and L5/S1 peak total JCFs (R2 =.60, P <.01) across the task space, suggesting motor coordination that favors sharing of load distribution across the trunk and legs during lifting. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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